| Year | 1957 |
| Date | 14-Feb |
| Volume | 116 |
| Issue | 2,908 |
| Page | 242 |
| Category | Historic |
| Part | |
| Title | 50 years ago |
| Author | |
| Notes | Hot water on tap (see 16 305 209), an electric house (see 16 308 269), acetylene gas fired loco boiler (see 16 303 167), brass buckets for Pelton wheel (see 16 303 167), milling and gear cutting (see 16 303 166), Marconi transmitter and receiver (see 16 303 165), radio signals through hills (see 16 305 213), |